YATO YT-17205 Manual De Instrucciones página 9

secure it. Use the jack arm by tightening it clockwise (IV) as far as it will go to close the release valve.
Place the jack under the load to be raised after you fi nd a point designed for use with jacks, as in cars, so that the load rests
centrally on the saddle of the jack (V).
Move the arm up and down to raise the load to the required height.
After lifting the load, secure it against falling with stands, for example.
The YT-17213 jack features a pedal for accelerating the raising movement of the arm. The pedal is not designed for lifting the
load. Place the pedal on the shaft and secure it against falling by tightening the retaining screw (VII). When you position the jack
underneath the load, press the pedal to raise the arm. To lift the load follow the procedure described above.
Lowering
Before lowering, make sure that the load to be lowered does not cause injury to the operators.
Slowly turn the lifting arm counterclockwise. (VI). Do not unscrew the release valve more than required for slow lowering
of the load.
Unscrewing the valve too much may cause its detachment from the casing.
After you lower the load completely, remove the jack from underneath the load.
Maintenance
If the lift is not used the shaft of the lift and the socket of the arm should be in the lower position. In case of post lifts also the
extension bolt should be turned into the shaft of the lift. This will prevent the surface of the shaft from corrosion.
The lift must be kept clean, and the external moving elements of the lift must be lubricated at least every ten working hours.
Purging the hydraulic system
It is required to have the following maintenance action realised in a specialised service point.
From time to time the hydraulic system of the lift fi lls with air bubbles. This may impair the functional effi ciency of the lift. If this is
the case the hydraulic system of the lift must be purged.
Place the lift in such a manner that the shaft is in a vertical position. Open the release valve and remove the oil tank plug (VI). Then
move the pump of the lift energetically a couple of times so as to remove the air.
Close the release valve and replace the oil tank plug. Check the functioning of the lift, and if necessary repeat the purging pro-
cedure.
Filling the oil tank and lubrication
It is required to have the following maintenance action realised in a specialised service point.
Place the lift in such a manner that the shaft is in a vertical position. Move the pump and the shaft to the extreme lower position.
Remove the oil tank plug (VI).
Use solely hydraulic oil whose viscosity class is SAE 10. It is prohibited to use other liquids for that purpose. Fill the tank to the
lower edge of the oil inlet.
Purge the lift following the direction indicated in „ Purging the hydraulic system".
Replace the oil tank plug. Check the functioning of the lift.
In regular intervals (at least every ten working hours) lubricate the articulated connections and other moving elements of the lift.
In case of post lifts, remember of periodical lubrication of the extension bolt thread.
Solution of problems
The lift lowers under The lift does
a load not lift a load
X
X
X X
O R I G I N A L
The lift does not lift a The pump springs
load to the full height back during lifting
X X
X X
I N S T R U C T I O N S
GB
Oil is leaking
The lift does not
from under the
lower completely
plug
X
X
There may be insuffi cient quantity of oil in
the lift. Fill the oil tank.
Air in the hydraulic system. Purge the
hydraulic system.
There may be excessive quantity of oil in
the lift. Remove the excess of oil
The valves may not close completely. Lift
the arm of the device a couple of times
without any load and then lower it.
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